Lucent Technologies Definity Enterprise Communication Server 8.2 User Manual

Issue 1

April 2000

Screen reference 

749

ISDN trunk group 

This field defines whether overlap receiving and overlap sending features are 
enabled. Set the field to 

 when you want overlap receiving or overlap 

sending. Set to 

 when you do not want these features enabled. The first 

field value indicates digit receiving and the second value indicates digit sending. 
There are 4 possible combinations:

, 

, 

, and 

.

Without overlap receiving or sending enabled, the digits on incoming and 
outgoing calls are sent enbloc. If the Digit Handling field is 

 or 

, the following results:

— Incoming Call Handling Treatment table does not appear 

— The Digit Treatment and Digits fields appear

— Warning message indicates that all Incoming Call Handling entries are 

removed when screen is submitted

— When screen is submitted with these values, all Incoming Call Handling 

entries are removed

Specifies the number sent to the far-end’s ISDN test line extension. When the test 
trunk long command is issued, this exact number is sent to the far-end to establish 
a call that tests the integrity of the trunk member under test. The number does not 
pass through routing or undergo digit manipulation. The digits entered must be 
what the far-end expects. For example, for an ISDN tandem trunk, the far-end test 
number should be a 7-digit ETN (Electronic Tandem Network) number. Up to 15 
digits may be entered in this field.

Defines the maximum size of ISDN messages sent by the switch. Currently, the 
system can receive 260 byte messages. Valid entries are 

, 

, 

, and 

.